1. Thus, this indicates that NDWI is a useful vegetation index for estimating forest fire potential in the Atlantic region.
因此，这表明NDWI是在大西洋地区的潜在有用的森林火灾指数。
2. NDWI的翻译
2. Therefore, the NDWI is not suitable for enhancing and extracting water information in built-up land-dominated areas.
实验还发现MNDWI比NDWI更能够揭示水体微细特征，如悬浮沉积物的分布、水质的变化。
3. Then, an improved estimation method of NDWI for the water content was put forward based on a good linear relationship between the NDWI and MCARI.
该方法可以较好地去除LAI的干扰，估算的相关系数平方提高为0.97，增加了27%，估算残差由初始的0.0156降低为0.00535，减少了65%。
4. Based on the analysis of the characteristics of spectrum about the wetland, at first, unsupervised classification on the image of study area is conducted. And then, by using the spectral feature of wetlands, texture, principal component analysis, NDWI and relative knowledge rules, the results of unsupervised classification is improved.
在滨海湿地光谱特征分析的基础上，首先对研究区的图像进行了非监督分类，进而利用湿地的光谱相应特征、纹理特征、主成分变换、归一化差异水体指数等特征和相应的知识规则，得到用于优化分类的知识规则，采用分层分类的方法对非监督分类的结果进行了优化，从而使提取结果的精度较原来有了很大程度的提高。
5. 911查询·英语单词大全
5. Water body; information extraction; remote sensing; NDWI; MNDWI
水体；信息提取；遥感； NDWI ； MNDWI
6. Furthermore, the MNDWI can reveal subtle features of water more efficiently than the NDWI or other visible spectral bands do due largely to its wider dynamic data range.
另外，MNDWI可以很容易地区分阴影和水体，解决了水体提取中难于消除阴影的难题。
7. NDWI
7. In the study, the integrated classifier taken the decision tree as basic classification algorithm, reduced the phenomena of objects with similar spectrum between the vegetations of living on forest and agricultural land, by using the slope data; extracted the water, agricultural land, and mountainous bare land, with the ancillary data of NDVI, NDWI and NDBI; and distinguished urban and bare land on plain, by using the maximum likelihood classifier.2 The Subsection Mean Method based on the mean statistic algorithm was introduced, in allusion to the land surface temperature field analysis of the fault system.
方法以决策树为基础，利用地形坡度数据，消除了由于地形坡度引起的林地和耕地之间的同谱异物现象；使用水体指数、植被指数和城镇指数，提取了水体、耕地、山区裸露地；采用最大似然法，区分了城镇用地和盆地区裸露地。2针对研究区断裂系统地表温度场分析，提出了基于均值统计运算的分段均值法。
8. Taking advantage of measured ASD hyperspectral data, we synchronized obtained crop parameters data and Cd content data of farm soil in several time phase of growing season of rice. The response relationships between potential sensitive spectrum remote sensing indices and physiological ecology parameters in Cd pollution stress were analyzed, such as leaf pigment concentration, water content, cell structure and leaf area index. Then the corresponding diagnosis spectral indices were determined, including Modified Chlorophyll Absorption in Reflectance Index, Normalized Difference Water Index, Red-Edge Vegetation Stress Index and Ratio vegetation index.
采用水稻生长季节多个时相的ASD实测高光谱数据和同步获取的作物参数与农田土壤镉含量数据，分析镉污染胁迫水稻生理生态参数如叶片色素含量、水分含量、细胞结构和叶面积指数等与潜在敏感光谱遥感指数的响应关系，确定MCARI、NDWI、RVSI 和RVI为相应的诊断光谱指数。
9. NDWI and MNDWI can not distinguish the semidry watercourse from the noise in semi-arid regions.
利用NDWI和MNDWI提取半干旱地区水系，无法有效的区分水系内的半干涸河道与背景噪音。
